Cutting machine



B. N. CLARY AND BQF. MAYO. C UTTING MACHINE.

APPLICATION man Nov. so. 1911.

1,405,492, Patented Feb. 7, 1922.

UNITED STATESl PATENT oFFlcE.

BURTON N. CLARY, OF BEVERLY, AND BENJAMIN F. MAYO, OF SALEM, MASSACHU- y SETTS, ASSIG-NORS TO UNI'ILEI)l SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

CUTTING MACHINE.

Application filed November 30, y1917. Serial No. 204,660.

To 1@ZZ whom t may concern:

Be it known that we, BURTON N. CLARY and BENJAMIN F. MAYO, citizens of the 'United States, and residents of Beverly and Salem, respectively, in the county of Essex and State of Massachusetts, have invented certain Improvements in Cutting Machines,

ypieces may be firmly united by glue; and

the present invention is illustratedA as embodied in a-machine for forming such faces.

The complementary faces produced by the present machine are respectively salient and 11e-entrant vfor the formation of which two different tools are required; and one feature of the invention comprises a tool carrier, herein shown as a rotary spindle, to which either tool may be fastened, a. holder for a piece of stock, and means for positioning the stock differently in theholder according to whether one or the other tool is being used, thus obviating the necessity for usingv two separate sets oftools and holders to produce the two complementary faces.

In forming a re-entrant'edge or groove upon a piece of stock, it is necessaryto causethe cutter to produce a wider and deeper `cut o-n a thick piece than upon a thin piece in order that there may be a smooth joint ybetween such a piece and a piece having a complementary edge when the two pieces are joined. To this end another feature of the invention comp-rises, in a machine for cutting a groove in a piece of stock, means responsive to a characteristic of the stock for controlling a characteristic of the groove. In vthe illustrative machine the width and depth of the ygroove are-controlled by the thickness of the stock. Y

A further feature of the invention relates to a holder for a piece of stock comprising a clamp between the jaws 'of which the stock may.l be placed, andmeans `for positioning the stock while the clamp is being tightened. This construction facilitates the "proper placing of the stock -in the holder andensures that the edge of the `stockshall beV laccurately alined preparatory tobeing operated upon.

including certain -details of construction and combinations of parts will bedescribed as embodied in an illustrative machine and pointed out in the appended claims. Referring now to the accompanying draw- 1ngs,-

Fig. 1 is-an elevation of a machine in which the present invention is embodied;

, Fig. 2 is a perspective of a pieced lift, the joined edges of the pieces ofwhich have been shaped on` the machine;

Fig. 3 is a perspective of the gage and its mounting;

Fig. 4 is a perspective of the clamp 'and the gage;

These and. other features of theinvention,

Specication of Letters Patent.' Patented Feb, '7, 19,22,l I

Fig. 5 is an elevation of the machine show' ing the 'formation of a salient edge on a piece of st ock;

Fig. 6 lsaview, partly in section and partly in elevation, showing the formation of a. re-entrant edge on a, piece of stock, and

Fig. 7 is a sectional view of the two cutters and two piecesof stock.

The machine comprises ahead 9 in which is rotatably mounted a spindle or tool carrier 11 having a pulley 13 by which power may be applied and provided at one end withv a seat to receive a cutter. vIn Figs. 1 and 5 a cutter 15 having a re-entrant edge is shown while in Fig. 6 a cutter 17 having a salient edge is shown; and it will be un-y derstood that either'form o-f cutter maybe used. A verticallymovable slide 19 mounted in vertical slideways 21 may be raised and lowered by means of a hand lever 23 pivoted at one end at 25 to a vstationary lug 27 and intermediateits ends at 29kv to the lower end of a link 31 the upper end of which is pivotedat 33`tothe slide `19. By manipulating the lever 23 the slide may be raised and lowered. i' Y Horizontally slidable .in an `undercut groove on the slide 19 is a second slide 35,

movement being` imparted to this second slide through a link 87 p1voted at one end to lug 39 on the slide and at the otherV to a hand lever 4l, said lever in turn being pivoted at its end at 43 to abraoket 45 carried by the vertically movable slide 19. Slidable in an undercut groove on the slide 85 in a direction at right. angles to the f direction of movement or said slide are the jaws 47 of a clamp adapted to hold the piece of stock during the cutting operation.V

groove formed in the under side of a bar;

' said bar being fast to and practically a part of the slide 35. ll/'iththe construction thus far described it will be evident that a piece of stock clamped betweenthe jaws 47 may be'moved vertically until a position has been reached 'in' which theV desired depth of cut' will` be made and then be moved horizontally to cause it to travel past the cutter.

Before proceeding to describe the means for locating the piece of stock in the jaws of the clamp and forlimiting the approach of the clamp to the cutter, attention is directed to Fig. 7. At l5 and 17 are shown portions of the two matching cutters, these cutters being of the same diameter and ofa width equal to or greater than that of the thickest stock which is to be operated upon. lt will be clear that when the cutter l5 is being` used the stock must project above the jaws 47 and that when the cutter 157 is being used the top edge of the st ck should be flush with tops of the jaws so as to prevent distortion of the stock during the action of the cutter. Aside from this difference inthe position of the two pieces of stock with reference to the jaws, it is necessary to limit the approach of the stock to the cutters differently in the two cases4 Referringflrst to the cutter l5, it will be seen'that-each piece of stock should be moved :up to the level indicated by the broken line A in'order to have the proper shape imparted to its edge but that a piece of stock of the saine thickness as the ilrst l when presented to the cutter 17, should be moved up only to the level of the broken the upward movement of the clamp and for positioning the stock in the jaws thereof. To these ends a gage 53 having an upper face 55 and a lower face 57 is 'so mounted that either face may kbe moved over the mouth of the clamp to limit the extent to which the edge of the piece of stock shall project above the tops of the jaws 47. This i gageis sli lable on nT-shapedguide 59 formed on one of the jaws 47 and is normally heid in inoperative position, as shown in the full line posit-ion in the iigures, by springs 6l each spring being coiled around apin, which is lcarried by the jaw, and abutting with one en'd the jaw and'with the other end the downwardly extending part of a tail 63 which is integral with the gage and slides on the pin. ln order to facilitate moving'the gage so as to briI-Ig'either the face 55 or they face 57 over the mouth of the clamp as may be` desired, a stop 65, slidablc on the jaw-47 may be moved by al rod 67Y into or out of the path of a lu'g69 on the gage. 1When the stop is in the full line position shown in Fig and the gage is pushed forward in opposition to the springs 6l, the

face 55s-will be brought into position over the mouth of the clamp and when thestop is pulled back into the dotted line position, the face 57 will be brought over the mouth ofthe clamp. i

In order to push Vthe piece of stock upwardly and to hold its upper edge in contact with the gage while the clamp is being tightened, twofratchet wheels 7ly located in recesses in the jaws 47 havetrunnions which are' rotatable andv slidable in grooves 7 3 formed in said jaws, and coiled springs 75 fastened at their inner ends to the wheelsh'ave free ends which extend into narrow sockets formed in the jaws.l The effect of this construction is to tend to push the stock out of the jaws and to hold its upper edge in contact with the gage. rllhe procedure is to push the piece of stock down into the mouth of the clamp with its upper edge below'the tops of the jaws thereby winding up the coiled springs. The screw 49 is'then turned by means of the handle 77 to tighten the clamp upon the stock. The gage 53 is then movedto bring the face 55 or the face 57, as may be desired, over the mouth of the clamp, and the clamp loosened. rllhe wheels 7l, under the action of the springs, then force the stock upwardly thereby causing the up per edge of the stock to be properly alined andthe stock to be positioned properly in the clamp. The clamp is then tightened again, and the gage released.

In order to ensu-re that the pieces upon which salient edges are to be formed shall always rise tothe levelv indicated by' the line A and that the pieces upon which re-entrant edges are to be formed shall rise to a level dependent upontheir thickness, the lollowis beveled.

ing mechanism is provided. Mounted upon a stem which is held in adjusted angular position in a bore in the frame of the machine by a pinch screw 78 is a stop 79 having two operative faces 81 and 88. v'Both farces are eccentric to the a-Xis of the stop for purposes of adjustment but the face8l is of the same height all the way across at every point and, once it has been adjusted, acts as would a flat face, while the face 83 In order to promote brevity the faces will be referred to respectively as fiat and beveled, the flat face 8l being used in the production of salient edges and the beveled face 83 inthe production of reentrant edges. Arranged Vto' cogoperate with these stop facesV is a stop member 85 fast to one of the jaws 47, -said member having a'flat horizontal face adapted to contact with the Hat face 8l and a beveled face adapted to 'Contact with the beveled'face 83 When, therefore, theface 81, isin its oper? ative position, as shown in Figs. 4 and 5,

the upward movement of the clamp is limited to a iXed position, but when the beveled face 83 is in operative positionfas shown in Fig. 5, the limit of upward movement of the clamp varies directly with the thickness of the stock, thethickerthe stock the nearer to the cutter the clamp will be moved, and thel deeper and wider will be the groove in the re-entrant face which is produced. The operation vof the machine is as Vfollows: Thev lever 4l is manipulated to move the clamp to onel side of 'thecutteiz A piece of stock is pushed down between the jaws 47 of the clamp, and the gage 53 'pushed over the mouth of the clamp and held in that position while the crank 77 is .being turned to cause the jaws to grip the stock. The gage is released` whereupon the springs 61 move it to inoperative position; the lever v23vis lifted until the stop member 85 contacts with the flat face 8l or the beveled face 83 and held in that position; and thelever 41 is manipulated to moveuthe stock hori- Zontally into the path of and past the cutter. l This completes thecutting of the piece. To get the piece out of theV machine, the lever 23 is lowered. The crank 77 is then manipulated to cause the grip of the jaws upon the stock to be released whereupon the springs 75, being still under tension, operate the wheels 7l to'causel them to eject the piece of stock or to push it upwardly a suflicient distance to permit it to be grasped readily. y v

Although the invention has been set forth as embodied in' @particular machine, it

should be understood that thehinventionv is not limited in vthegscope of its application 2. A machine of the class described, havf ing, in combination, atool carrier, a clamp between the rjaws of which the piece of stock is held, and a two-fa|ced gage for positioning the stock with its edge to be operated upon projecting from the jaws of the clamp or flush with the tops of said jaws as may be desired. f

3. A` machine of the class described, zhav-` ing, in combination, a tool carrier, a holder for a piece of stock, means for producing relative movement between thefholderl andA the carrier, a gagefor positioning the stockin the holder, and yielding'meansV tending to hold theV gage in and to return vit to in-` operative position. a 1 f f j 4. In an apparatus for performinga plurality of operations upon material, operating means, means for. holding the material, means for producing relative Vmovement/of approach between the holding means and the operating means, anda gage for positioning the materialin the holding means, said gage having a plurality ofV faces with which the material may `contacttoV position kit differently in thel holding j means for `different operations. y j Y -f y 5. Amachineof the class described, hav- Zing, in combination, a carrier towhich may be fastened either oneof two cuttershaving cutting `faces adapted to produce upon the edges of two piecesof stock respectively a salient and a re-,entrant face by which the pieces may be joined, a holder for the stock, means,v for producing relative movement between the carrier and the holder tocause the stock to be operated upon, and Ameans' for positioning the piece vof stockA differently in the holder according to whether a salient or clamp to cause the stock to be operated upon,

means for positioning -the pieces oflstock differently for thefdifl'erent cutters and meansl for limiting-the relative movement in such manner that the area of the faces provllO duced, whether'salient or ,re-entrant, will be equal ior pieces of stock of the same thickness. v

7. A machine .of the class described, having, in combination, a spindle to `which may be fastened either one of two cutters having cutting iaces adapted to produce Yupon the edge of two pieces or stock respectively a salient and a re-entrant face by which .the pieces ,may be joined, a clamp for holding the pieces or stock, means -for producing relative movement toward each other ofthe spindle and the clamp, and means for limiting this approach kto a given relative position .or-the clamp and the spindle when the salient .face is tol be produced and for limiting Ait .to a different relative position when l.the reentrant face is to be produced.

' 8. A machine of the class described, having, in combination, means .for progressively making a cut at the edge of a piece of stock, and means responsiveto a dimension or the stock for controlling the making of the cut.

9. A machine of the class described, having, inV combination, means for cutting a groove in the edge of a piece of stock, and means responsive to a dimension ofthe stock Afor controlling a dimension of the groove.

10. A machine of the class described, having, in combination,v means for cutting a groove in the edge 'of a piece of stock,'and means responsive to a dimension oi the stock for controlling the depth oi the groove.

11. A machine of the class described, hat ing, in combination, means for .cutting a groove in the edge ot' la piece of stock,`and means responsive to a dimension of the stock for controlling the width of the groove.

Y 12. A machine of the class described, having, in combination, a tool yfor cutting into a piece of stock, a clamp for holding the stock during the cutting operation, means for producing relative movement between the tool andthe clamp 'to cause the tool to enter the stock, and means responsive to the thickness or the stock for controlling the exy tent of the relative movement.

13. A machine of the class described, having, in combination, a tool for forming a groove in a piece of stock, av clamp for holding the stock during the cutting operation, means k,for producing relative movement between the tool and the clamp to cause the tool to enter thestock, and means whereby the extent of separation of the jaws of the clamp controls the extent ofthe relative movement. l

14. A machine ofthe class described, having, in combination, a tool for operating upon a piece of stock, means for holding the stock during the operation of the tool, means for producing relative movement between .the tool and the holding means, and stop members having co-operating faces conincassa structed and arranged to limit the `extent or the relative movement in accordancewith a dimension of the stock. Y

15. A machine for shaping the edges of pieces of stock, having, in combination a cutting tool, a clamp, means rorproducing relative v'movement oi approach between the clamp-and the tool, a gage adapted todetermine the position oi' the stock in the clamp, and means for holding the edge or the stock against the gage while the-clamp is being tightened on the stock.

16. A machine for sha-ping t-he edges or pieces of stock, having, in combination, a cutting tool, a clamp, means .for producing relative movement of approach between the clamp and the tool, a gage adapted to determine the position of the stock in ,the clamp, means for holding the edge of the stock vagainst the gage While the `clamp is being tightened on the stock, and means whereby the gage may be withdrawn' trom operative .position after the clamp has been tightened. Y v y 17. A holder for a piece of stock comprising a pair of jaws arranged to clamp the stockbetween them, and means for determinately positioning a piece of stock placed between the jaws in one of a plurality of positions with respect to the distance of yits edgeV from the edges of the jaws, preparatory to tightening the clamp.

18. A holder for a piece of stock comprising a pair of jaws, means for closing the jaws on theppiece, a gage movable over the mouth' of the clamp selectively to position the piece of stock in one or' a plurality of determinate positions, and means for pushing the piece against the gage when the jaws are opened and Jfor holding it in that position while the jaws are beingclosed again.

19. A holder for a piece ot stock comprising a pair of aws, a gage having a plurality of dilterently positioned stock engaging faces, any one of which may be moved into operative relation with respect to the mouth of said jaws, and means Jfor pushing 4from the mouth of said jaws and for holdingwith its edge against a lface of said gage a piece of work pushed into said mouth.

20. A holder for a piece of stock comprising a clamp, and means for locatin the stock with respect to the jaws of the c amp, said means including a gage and means rendered effective,V by pushing the piece ot stock between the jaws for holding the stock against the ga 21. ing' a pair of jaws, a gage for determining the location of the stock with respect to the jaws, and means including a spring adapted to be put under tension by placing the stock between the aws Jfor holdingY the stock against the ga Y e. f holder for a piece of stock compris-- 22. A holder for a piece of stock comprising a pair of jaws, a gage for determining the location of the stock with respect to the jaws, and means for moving the stock into engagement with the gage, said means including a wheel rotatably mounted in one of the jaws, and a coiled spring connected with said wheel and arranged to be wound up by pushing Va piece of stock between the aws.

23. A holder for a piece of stock comprising a pair of jaws, a gage for determining the location of the stock with respect to the jaws, a pair of opposed wheels rotatably mounted in the jaws and slidable toward and from each other, and coiled springs each having one end fastened to a wheel and the other end fastened to one of the jaws.

24. A machine for shaping the edges of pieces of stock, having, in combination, a cutting tool, a clamp between the jaws of which'the piece of stock is held, a' gage for positioning the stock in the clamp, means for producing relative movement between the cutting tool and the clamp to cause the edge of the stock to be shaped, and means for ejecting the stock when the clamp is released.

25. A machine of the class described, having, in combination, an operating tool, a support for a piece of stock, means for producing relative movement between the tool and the support, and a gage for positioning the piece of stock relatively to the support,

said gage having two faces, differently located with respect to the tool, either of which may be brought into operative position, ac-

of stock held thereby upon the unclamping v of the 'aws.

27. holder for a piece of stock comprising a pair of clampin jaws, a wheel rotatably mounted in oneo the jaws, and means arranged'automatically to rotate the wheel to'eject the piece of stock held by the jaws upon the unclamping of the aws.

28. A holder for a piece of stock comprising a pair of clamping jaws, a wheel rotatably mounted in one' of the jaws, and a spring arranged to rotate the wheel to eject the piece of stock held by the jaws uponthe unclamping of the aws.

29, A holder for a piece of stock comprising a pair of clamping jaws, a pair of opposed wheels rotatably mounted one in each of the jaws, and a pair of coiled springs, one connected to each of the wheels, arranged to rotate the wheels to eject the piece of stock held by the jaws upon the unclamping of the 'aws.

30. holder for a piece of stock comprising a pair of clamping jaws, and rotary means rendered effective by the insertion of said piece of stock and-operative for ejection thereof upon unclamping said j' aws.

' In testimony whereof we have signed our names to this specification.

BURTON N. oLARY. BENJAMIN F. MAYO. 

